공초점레이저주사현미경을 이용한 레진침윤법 적용 우치법랑질의 잇솔질 마모저항성 평가
Abrasion of resin infiltrated enamel by tooth brushing
손정희, 임도선, 마득상, 박덕영,
소속 상세정보
손정희 ( Son Jung-Hui ) - 대원대학교 치위생과
임도선 ( Lim Do-Seon ) - 을지대학교 보건과학대학 치위생학과
마득상 ( Ma Deuk-Sang ) - 강릉원주대학교 치과대학 예방치학교실
박덕영 ( Park Deok-Young ) - 강릉원주대학교 치과대학 예방치학교실
KMID : 0355420130370010009
Abstract
Objectives: The purpose of this study was to evaluate abrasion of Icon® infiltrated, sound bovine enamel by using confocal laser scanning microscopy (CLSM) after toothbrush abrasion tests. Methods: Sound bovine enamel specimens whose Vickers Hardness Number ranged from 280 to 320 were prepared. To measure abrasion, specimens were allocated to groups on the basis of tooth brushing stroke frequencies. Tooth brushing stroke frequencies were categorized into 5 groups: 1,800, 5,400, 10,800, 21,600 and 43,200 strokes. Both infiltration depth of Icon® and the abrasion depth were measured by CLSM. Results: Mean infiltration depth of Icon® for sound bovine enamel was 98.6 ?m. There was no statistically significant difference in enamel abrasion depth between groups with 5,400 strokes and 10,800 strokes, but the abrasion depth increased with further increase in tooth brushing stroke frequencies (P<0.001). The mean abrasion depth of resin infiltrated bovine enamel after 43,200 tooth brushing strokes was 17.45 ?m. Conclusions: The magnitude of abrasion after 43,200 tooth brushing strokes, which corresponds to brushing 3 times a day for 4 years, was less than 20 ?m. This result suggests that abrasion by tooth brushing would not be a clinical problem for resin infiltrated enamel.
키워드
Dental caries;Dental sealant;Enamel wear;Infiltration;Toothbrush abrasion
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